Sill construction for gliding windows



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F. c. osTEN, SR

sm. CONSTRUCTION FOR GLIDING wINnows Nov. l0, `1959 Filed Sept. 24, 1956 2,911,6ss sint. CONSTRUCTION FOR GLmlNG WINDOWS fFred C. Osten, Sr., Detroit, Mich. 'Application September 24, 1956, Serial No. 611,507

l 4 claims, (c1. 'zo-11) "gliding windows as set forth in the preceding object,

wherein drainage is provided Aby ports through the sill Opening onto the upper and lower ends of an inclined metallic drain plate which also serves as a strengthening brace which adds to the rigidity of thevsill construction.

Another-object is to provideav sill 'construction for gliding'windows as setforth in the preceding objects wherein the sill, including its guide ribs, is ofintegral one-Piece construction, except for the inclined drain plate, so that there is' no danger of accidental. separation of the compo'nen'ts'of the'sill and so that the guide ribs will lalways .remainaccuately parallel to one another and inseparable from lthe sill as av whole.

'Another object is to provide a sill construction for lgliding. windows wherein the underside vofthe sill'and the front wall thereof are provided with abutments and lwh'erein the front'wall is' intentionallyxextruded in'a "slightly overtical-position so as to bring'the two abut- Vments 4closer to one another than the'width ofthe drain plate, the `drain plate being snapped into position between the abutments by springing the front wall outward,'there by holding'the drain plate firmly in position by the spring ofthe metal andat the' same time accurately holding the -front wall in a vertical position.

l(Either objects'and advantages of the invention will be- 'come apparent during the coursev of the following de- `script`ion of the accompanying drawings, wherein:

Figure `l is'a horizontal section through a window ffr'ame showing intop plan view a gliding'window sill infstallationaccordng to one form of lthe invention taken "alon-gfthe line lel` in Figure 42;

"Figure 2 is a front elevation, partly in vertical section,

"fof the'glidi'ng window sill installation shown in'Figure l; ll-iigure 3 is -a vertical 4section Vtaken alongk the line 3-3 in Figure l; and y 'Figure 4 is a fragmentary perspective view of a short secti'on of thegliding window sill construction-of Figures l to 3 inclusive, looking approximately from 4the direction 4--4 in Figure 2.

' 'Hitherto,g'liding window installations composed of ""Window sashes which slide horizontally past one'another -While'being-opened and closed, have required special mill- 'Work'because Vof their special construction, which differed from the construction of standard double-hung window sashesswhieh Vslide vertically past one 'another into their y, United States Patent O "i r window sill.

Y i2,911,688 Patented Nov. 10, 1959 lCC 2 open and closed positions. As a result, prior gliding window installations have been expensive to manufacture and costly to buy and install because of the special procedures and small-quantity manufacturing runs involved,

in contrast with the enormous quantity manufacturing runs of standard double-hung sash windows.

The present invention provides an improved gliding window sill construction which enables standard doublehung sash to be used merely by severing a narrow strip from the bottom rail of the lower sash and mounting the sashes horizontally upon the improved window sill construction of the present invention. This window sill construction is inexpensively and easily produced by mass .production extrusion methods and in addition to two guide ribs for the two glidingsashes, also has a pair of abut- -ments on theunderside ofthe topwall and the inner side ofthe front wall respectively, between which is snapped an'inclined drain plate which also serves as a strengthening brace, inlet drain holes being provided immediately behind the front rib opening onto the upper portion of the drain plate and outlet drain holes provided in the lower edge of the front wall immediately adjacent the lower portion of the drain plate for the outiiow of the water from rain or` snow falling into the space between the guide ribs. A barrier member of metal or other material is located between the guide ribs at the limit of sliding of the front gliding sash to prevent iiow of water along the trough between the guide ribs into the portion thereof exposed to the interior of the room in which the window is located. In order to facilitate assembly, as well as to hold the drain plate in position, the sill member is extruded with its front wall inclined slightly inward at slightly less than right angles to the top wall, so that the two abutments are slightly closer to one another than the width ofthe drain plate, which is snapped into position' by swinging the front wall outward into a perpendicular position, the spring of the metal holding the drain plate henceforth in position.

Referring to the drawingsgin detail, Figures l to v3 'inelusive show a gliding window sill construction, generally designated 10, according to one form ofthe invention as mounted in a Window casing or window frame 12 containing a pair of gliding window sashes, generally designated 14 and 16, shown in Figure 3 and also in dotted lines in Figure 1 in order to avoid obscuring the details of the window sillconstruction 10 therebeneath. The sashes 14and 16 are of conventional construction and their details are beyond the scope of the present invention.

It is suicient here to state that the right-hand or' outer sash 16 is a standard upper double-hung sash and the left-hand or inner sash 14 is a standard lower doublehung sash from which a strip of approximately one inch width has been sawed off the lower edge portion of th bottom rail.

The window frame or casing l2 (Figures l and 2) has an outer frame portion 18, side members 2@ `and a subsill 22 interconnecting the side members 26' at their lower kends and serving as a support for the sill 1t) as described below. The lower ends of the side'mernbers 20 are interconnected on the inner side of the window frame 12 'by lthe so-called stool 24 (Figure 3) which serves as an inner Mounted beneath the stool 24 is a so-called apron 26 which is secured to the plaster layer 28, thevlatter in turn lbeing secured to the furring 30 of the building wall, generally designated 32. The window opening 34m which the window Vframe or casing 12 is inserted and --nounted is outlined by the usual studs 36. The window `frame or lcasing l2 also lhas an outer frame portion 3S .connected `to and depending from the subsill 22 ands'e- `curedtorth'e stud 36.- An outer trim unit 46 is secured-.to the #side members Ztlxoutside the window `frame 12 (Fig- 2,911,ess Y ure 1), which is provided with outer and inner stop rails 42 and 44 respectively, together with an inner vertical trim rail 46.

Y Thegliding sashes 14 and 16 are of similar and conventional construction, only the lower portions being shown (Figure 3). Each includes the usual top rail (not shown), bottom rail 48 interconnected by the so-called Stiles 50 which are rabbeted as at 52 to receive` the Yusual window pane 54. The bottom rails 48 are grooved as at S6 for sliding and guiding engagement with the sill 10 during their horizontal sliding motion, as explained below in connection with the description of the construction of the sill 10. The top rail (not shown) Vis similarly grooved and is engaged by conventional channel guide members (not shown) urged resiliently downward by spring plunger units (also not shown) Vand beyond the scope of the present invention. Y I l A The gliding window sill 10 is mounted upon the subsill 22 andris preferably produced by extrusion from any suitable material, such as aluminum, and has a top wall, generally designated 58, consisting of a substantially hori- 'zont'al inner portion 60, an inner guide rib Y62 of inverted verted channel guide rib 66, and an outer slightly inclined portion 68 also directed downwardly and forwardly but at a lesser angle to the horizontal than the central portion 64. Integral with and depending from the inner and outer top wall portions 60 and 68 are inner and outer walls 70 and 72 having lower edges 74 and 76 respectively, the latter having an in-turned abutment rib 78. The walls 70 and 72 are of suiciently different Vheights such that the vtop wall 58 will be substantially horizontal when the Sill 10 is mounted upon the upper surface of the subsill 22. l Also depending from the lower surface of the top wall 58 at its approximate mid-portion immediately rearward of the forward guide rib' 66 is an upper abutment rib or flange 80. The upper and lower abutment ribs 78 and 80 form grooves 82 and 84 vwith their adjacent wall por- 'tions 64 and 72 respectively into which is snapped the upper and lower edges 86 and 88 of an inclined drain plate 90. The drain plate 90 is slightly wider than the space between 'the bottoms of the grooves 82 and 84,'and.

the sill 10, as extruded,` has the front wall 72 tilted slightly rearwardly at its lower edge 76 s`o that when the drain plate 90 is snapped into place with its edges 86 and 88 in the grooves 82 and 84, the front Wall 72 will spring outward and resume its normal vertical position.

In order to provide for drainage of water falling into the channel 92 between the outer and inner'guide ribs 66 and 62, the exposed half of the intermediate top wall portion 64 forming the bottom f'the channel 92 when the outer sash 16 is moved to its closed position is provided with elongated inlet drain slots or holes 94 spaced at intervals therealong (Figures 1 and 4), these inlet drain holes 94 opening onto the upper surface of the drain plate 90 near its upper edge 86. Also provided in the lower portion of the front wall 72 near its lower edge 76 immediately above the lower abutment rib or flange 78 are spaced elongated outlet drain slots or holes 96 located adjacent the lower edge 84 of the drain plate 90. In order to close the niidportion of the channel 92 (Figures l and 2) and prevent iiow of water to the left thereof, such as from rain or melting snow, a barrier member or wedge block 98 of aluminum, rubber or the like is secured as by the fastener 99 to the central portion 64 of the top wall 58.

Before the installation of the sill 10, the drain plate 90 is snapped into place in the manner described above in connection with the construction thereof and the'wedge block 98 mounted in the mid portion thereof, as also described above. The window sill unit generally designated 100, consisting of the sill 10, drain plate 90 and wedge block 98, is then mounted upon the subsill 22 in its vproper position (Figures 1 and 3) and secured thereto by screws or other fasteners 102 inserted through longitudinallyspaced holes 104 in the top wall of the rearward guide rib 62 (Figure 3). Resiliently-mounted upper guide channels or guide rails (not shown) are then installed, after which the outer and inner sashes 16 and 14 are mounted upon their respective guide ribs 66 and 62 by pushing their upper edges upward against the resiliently-mounted guide channels until their lower edges are able to pass over the guide ribs 62 and 66 and fall into engagement therewith in their grooves 56.

In the use of the window sill unit 100, when the window sashes 14 and 16 are in their closed positions, the rain or snow is free to enter the right-hand end of the 4middle channel 92 where the inlet drain slots 94 are located (Figure l). The water resulting from the rain or the melted snow collects in this portion of the channel 92 but is prevented from owing past the midportion thereof by the presence of the wedge block or stop block 98. It will be understood that the wedge or stop block 98 lies beneath the meeting rail of thelouter sash 16 when Athe window is in its closed position. The water resulting from the rain or melting snow accordingly passes downward through the inlet drain holes or'slots 94 and flows downward over the inclined drain plate 90 and escapes through the lower or outlet slots 96 in the front wall 72.' In this manner, the water is deflected from the space above the subsill 22, where it would otherwise be likely to collect and rot the wood or otherwise do damage to the surrounding structure. The drain plate 90, in addition to serving as a drain board for this water, also serves as an inclined brace which interconnects the front wall 72 and the top wall 58 through their respective flanges or abutment ribs 78 and respectively, thereby adding to the strength and rigidity of the window sill unit 100.

What I claim is: Y

l. A window sill construction for gliding windows comprising a one-piece elongated window sill member having a top wall with integral laterally-spaced upstanding parallel forward. and lrearward guide ribs thereon forming a channel therebetween and a front wall depending from the forward portion of said top wall; said top wall between said guide ribs having water inlet drain openings therethrough, said front wall having water outlet drain openings therethrough inI the lower portion thereof,l an elongated drain plate disposed beneath said sill member and inclined downwardly andv forwardly from a location-adjacent thev under side of said top wall below said top wall `drain openings to'a location adjacent the lower edge'of said front wall below said front wall drain openings, and means for Asecuring said drain plate to said sill member.

2. vA window sill construction for gliding' windows comprising a one-piece elongated window sill member having a top wall with integral laterally-spaced upstanding parallel forward and rearward guide ribs thereon forming a channel therebetween and a front wall de pendingfrom the forward p'ortion of said top wall; said top wall between said guide ribs Yhaving water inlet drain openings therethrough, said front wall having water out- 60' letV drain openings' therethrough in the lower 'portion thereof, an elongated drain plate'disposed beneath said sill member an'df'inclinedfdownwardly and' vforwardly fromvbelow said `top`wall drain openings to below said frontV wall drain'openings, means for securing saiddrain plate to said sill member, and a substantially water-tight barrier element disposed in and extending as a'v dam across said Vchannel between said-ribs' and said top wall in water-tight engagement therewithintermejdiate the opposite ends of said sill member; i

3. A window sill construction for 'glidingfwindows comprising a one-pieceelongated 'window' sillmember having a top wall with integral laterally-spaced upstanding parallelforwardand rearward guide ribs thereon forming a channel therebetweenfand a front wall depending from the forward portion of said topwallg'said top wall between said guide ribs having water inlet drain openings therethrough, said front wall having water outlet drain openings therethrough in the lower portion thereof, an elongated drain plate disposed beneath said sill member and inclined downwardly and forwardly from a location adjacent the under side of said top lwall below said top wall drain openings to a location adjacent the lower edge of said front wall below said front wall drain openings, and means for securing said drain plate to said sill member, said securing means including an upper abutment projecting downwardly from the underside of said top wall into engagement with the upper edge portion of said drain plate, and a lower abutment projecting rearwardly from the rearward side of said front wall into engagement with the lower edge portion of said drain plate.

4. A window sill construction for gliding windows comprising a one-piece elongated window sill member having a top wall with integral laterally-spaced upstanding parallel forward and rearward guide ribs thereon forming a channel therebetween and a front wall depending from the forward portion of said top wall; said top wall between said guide ribs having water inlet drain openings therethrough, said front wall having water out let drain openings therethrough in the lower portion thereof, an elongated drain plate disposed beneath said sill member and inclined downwardly and forwardly from Ya location adjacent the under side of said top wall below said top wall drain openings to a location adjacent the lower edge of said front wall below said front wall drain openings, and means for securing said drain plate to said sill member, said securing means including an upper abutment projecting downwardly from the underside of said top wall into engagement with the upper edge portion of said drain plate, and a lower abutment projecting rearwardly from the rearward side of said front wall into engagement with the lower edge portion of said drain plate, said abutments in the absence of said drain plate being separated from one another by a distance less than the width of said drain plate, said front wall with said drain plate installed between said upper and lower abutments resiliently engaging and urging said drain plate `upwardly and rearwardly against said upper abutment.

Oftedal et al. Sept. 6, 1938 Kammerer Feb. 24, 1942 Dedicativn Osten, ST., Detroit, Mich. SILL CONSTRUCTION FOR GLXDING VINDOWS. Patent dated Nov. 10, 1959. Dedication filed Mar. 4, 1963, by the inventor.

VHereoy dedica-tes to the people of the United States the f said patent.

[Oyezal Gazette Ayr/'il Q3, 1963.]

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